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Room temperature operation of GaSb-based resonant tunneling diodes by prewell injection
- Source :
- Applied Physics Letters. 110:033507
- Publication Year :
- 2017
- Publisher :
- AIP Publishing, 2017.
-
Abstract
- The authors are grateful for financial support by the state of Bavaria, the German Ministry of Education and Research (BMBF) within the national project HIRT (FKZ 13XP5003B). We present room temperature resonant tunneling of GaSb/AlAsSb double barrier resonant tunneling diodes with pseudomorphically grown prewell emitter structures comprising the ternary compound semiconductors GaInSb and GaAsSb. At room temperature, resonant tunneling is absent for diode structures without prewell emitters. The incorporation of Ga0.84In0.16Sb and GaAs0.05Sb0.95 prewell emitters leads to room temperature resonant tunneling with peak‐to‐valley current ratios of 1.45 and 1.36 , respectively. The room temperature operation is attributed to the enhanced Γ ‐L‐valley energy separation and consequently depopulation of L‐valley states in the conduction band of the ternary compound emitter prewell with respect to bulk GaSb. Postprint
- Subjects :
- 010302 applied physics
Materials science
Physics and Astronomy (miscellaneous)
business.industry
NDAS
02 engineering and technology
021001 nanoscience & nanotechnology
Double barrier
T Technology
01 natural sciences
chemistry.chemical_compound
QC Physics
Semiconductor
chemistry
Ternary compound
0103 physical sciences
Optoelectronics
0210 nano-technology
business
Conduction band
QC
Quantum tunnelling
Diode
Common emitter
Subjects
Details
- ISSN :
- 10773118 and 00036951
- Volume :
- 110
- Database :
- OpenAIRE
- Journal :
- Applied Physics Letters
- Accession number :
- edsair.doi.dedup.....5ec017521c382abad246bc5595122fa2